 (at ???)
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 (at ???)
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50 PIN M/50 MALE at ???.
50 PIN M/50 FEMALE at ???.
| Pin | Return | Dir | Description | Active State | 
|---|---|---|---|---|
| CC | EE |  | Ready | High | 
| Y | AA |  | On Line | High | 
| E | C |  | Demand | High | 
| j | m |  | Data Strobe | High | 
| B | D |  | Data 1 | n/a | 
| F | J |  | Data 2 | n/a | 
| L | N |  | Data 3 | n/a | 
| R | T |  | Data 4 | n/a | 
| V | X |  | Data 5 | n/a | 
| Z | b |  | Data 6 | n/a | 
| n | k |  | Data 7 | n/a | 
| u | w |  | Data 8 | n/a | 
| z | BB |  | Parity | n/a | 
| d | f |  | Ident 0 | n/a | 
| a | c |  | Ident 1 | n/a | 
| v | x |  | Interface Verify | Low | 
| HH | K |  | +5 VDC (Test) | High | 
| r | t |  | Parity Error | High | 
| M | P |  | Bottom of Form | High | 
| S | U |  | Top of Form | High | 
| p | s |  | Paper Instruction | High | 
| A | H |  | Buffer Clear | High | 
| W | Y |  | Paper Moving | High | 
| FF | DD |  | Paper Moving | High | 
| e | h |  | Not VFU | High | 
  Note: Direction is Host (Computer) relative Peripheral (Printer).
  Note: Return is Ground signal for Unbalanced and the Negative Signal for Balanced.
| Contributor: | Joakim Ögren | 
| Source: | ? | 
  Copyright © The Hardware Book Team 1996-2004.
  May be copied and redistributed, partially or in whole, as appropriate.
  Document last modified: 2002-01-10